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The sex of a reptile embryo partly results from the production of sex hormones during development, and one process to produce those hormones depends…
Sex DifferentiationReproductionAdaptationfetal developmentEmbryologyEmbryonic images displayed in Life magazine during the mid-twentieth century serve as a representation of technological advances and the growing…
PublicationsReproductionChicksHuman DevelopmentFetusPrenatal exposure to alcohol (ethanol) results in a continuum of physical and neurological developmental abnormalities that vary depending on the…
fetal alcohol syndromeCongenital DisordersFetusMutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs is the thirteenth chapter of Charles Darwin's book The Origin of…
LiteratureEvolutionEvolution (Biology)Natural selectionEmbryologyThe review article “Cell Deaths in Normal Vertebrate Ontogeny” (abbreviated as “Cell Deaths”) was published in Biological Reviews of the Cambridge…
LiteratureCell DeathPublicationsVertebratesOntogenyIn 1996, Michael R. Harrison published “Fetal Surgery” in the American Journal of Obstetrics and Gynecology. In the article, Harrison describes the…
LiteratureFetus--SurgeryObstetrics--SurgeryFetus--Abnormalities--TreatmentFetal heart--Abnormalities--DiagnosisDevelopmental Effects of Endocrine-Disrupting Chemicals in Wildlife and Humans, was published in 1993 in Environmental Health Perspectives. In the…
LiteratureEndocrine disrupting chemicalsEmbryologyfetal developmentendocrine disruptorsEnvironment and Birth Defects by James Graves Wilson in the US was published in 1973. The book summarized information on the causes of malformations…
LiteratureBirth DefectsAbnormalities, HumanTeratogensTeratologyIn the late 1980s, Peter Goodfellow in London, UK led a team of researchers who showed that the SRY gene in humans codes a protein that causes testes…
TestisY ChromosomeEmbryosChromosomesSex ChromosomesHans Spemann was an experimental embryologist best known for his transplantation studies and as the originator of the "organizer" concept. One of his…
PeopleSpemann, Hans, 1869-1941TransplantationBiography